baber/WOPTO huggingface dataset:
Patent GB-192510-A (GB)
Title: Improvements in automatic train control apparatus
IPC: B61L3/10
Filed: 1921-11-09
Abstract: 192,510. Beaumont, J., and Regan, J. B. Nov. 9, 1921. Track apparatus for stopping trains and actuating signals on trains-A train control system includes a track ramp which may be de-energized, or energized positively or negatively, a polarized relay on the train for controlling the brake valve, two audible indicators actuated according to the condition of the ramp, and two manually controlled switches, one to be operated after a caution indication has been given and both to be operated simultaneously to restore the vehicle apparatus after a stop indication. The ramp A is connected with the signal system or with the track circuits to repeat the indications. The apparatus shown in the Figure above the ramp is on the vehicle, the unlimited speed circuit being shown in full lines. A plunger P is held in its low position by springs or brake pipe pressure and carries contact segments which normally bridge contact brushes 4, 5 and 8, 9. The battery B supplies current through the relay contact 2, contact brushes 4, 5, relay winding R, brushes 8, 9, and relay contact 11 to hold the relay contacts in the position shown, in which contact 19 completes the circuit to the brake coil E so that the brakes are held off. As the plunger rides up the ramp the contacts 14, 15 are made and then the contacts 4, 9 are broken. If the line is clear the ramp is energized frcm the positive side of the signal circuit and the relay is maintained in its normal position. The circuit of the bell 42 is completed through relay contact 40 and earth and gives the audible indication for clear. As the plunger leaves the ramp the normal condition is restored. Where a caution indication is given the ramp is energized negatively so that the current through the coil R is in the opposite direction to that in the last case. The relay contacts then occupy the right hand positions shown in dotted lines. The brakes are applied by the valve ceil E being deenergized by the opening of the contacts 25 and the switch SW, and the whistle W' is sounded. After the plunger leaves the ramp the contacts 25 close, the switch SW is operated by the driver, and the relay is held in its operated position by reason of its own maintaining circuit. The brakes are then taken off while the whistle W' continues to sound. When a stop signal is to be repeated the ramp is not energized at all, This causes the relay to move to its central position. The coils E, E<1> are de-energized, the brakes are applied and both whistles W, W<1> are sounded. The relay can then only be replaced bv simultaneous operation of the switches SW, SW<1> and these mav be so situated that two men are required to perform the operation. The lamps G, Y, R<1> are connected in circuit to give visible indications for clear, caution, and stop respectively. Specification 158,966 is referred to.
Patent GB-171391-A (GB)
Title: Method of manufacturing acetone from acetic acid
IPC: C07C45/48
Filed: 1921-11-09
Abstract: The carrier or support for a catalyst for the production of acetone from acetic acid, is made of aluminium.  By vigorously stirring the molten metal as it cools, rough porous granules are produced upon which the catalyst, e.g. an oxide, hydrate, carbonate or acetate of calcium or barium, can be deposited by placing the granules in a solution or suspension thereof and evaporating to dryness.  The Specification, as open to inspection under Sect. 91 (3) (a), describes the use as carrier of any substance of high heat conductivity, such as metal or alloys, and moreover is not confined to the manufacture of acetone.  This subject-matter does not appear in the Specification as accepted.ALSO:Acetone is obtained by passing acetic acid vapour over a catalyst, such as an oxide, hydrate, carbonate or acetate of calcium or barium mounted upon aluminium as a carrier.  By vigorously stirring molten aluminium as it cools, rough porous granules are produced, upon which the catalyst can be deposited by placing the granules in a solution or suspension thereof and evaporating to dryness.  The Specification as open to inspection under Sect. 91 (3) (a) describes the use as carrier of any substance of high heat conductivity, such as metals or alloys; this subject-matter does not appear in the Specification as accepted.
Patent GB-469639-A (GB)
Title: Improvements in or relating to the cylinders and scavenging means of two-stroke internal combustion engines
IPC: F01B7/12
Filed: 1936-11-03
Abstract: 469,639. Cylinders; driving - gear. LARAQUE, R. ST. J. Nov. 3, 1936, Nos. 29877 and 29878. Convention dates. Nov. 4, 1935 and Oct. 22, 1936. [Class 7 (ii)] The cylinder liner a, of an opposed-piston engine, is mounted by the engagement of flanges k, m with the crank case, the flange k being pressed against the wall of an exhaust passage u by a detachable admission passage p which co-operates with a passage in the crank-case leading from a fly-wheel pump. A detachable cover s enables the liner to be quickly removed when the holding-down studs p<1> have been withdrawn. The pistons drive through rocking beams d<1>, d<2>, the arms e<1>, e<2>, of which are off-set so that links h<1>, h<2>, may be connected to separate cranks on the crank-shaft. The fly-wheel pump is of the sliding vane type, described in Specification 266,342, [Class 110 (ii)]. Chambers of increasing and decreasing volume are formed by the hollow fly-wheel itself and a drum, eccentric thereto, mounted on a hollow shaft through which the charging air is drawn before compression.
Patent GB-385389-A (GB)
Title: Improved electric circuit breaking apparatus
IPC: H01H33/06
Filed: 1931-10-28
Abstract: 385,389. Arc-rupturing in switches. ELLIS, R. E., 70, Chancery Lane, London. -(Metropolitan Device Corporation ; 1250, Atlantic Avenue, Brooklyn, New York, U.S.A.) Oct. 28, 1931, No. 29899. [Class 38 (v).] High-tension switches ; switchgear structures ; automatic circuit - breakers &c. ; latching and unlatching.-A circuit-breaking arrangement designed to replace oil switches includes a fuse of low rating arranged in parallel with a main switch and designed to blow on opening of the latter. The leads 10, 11 lead to conductors 12 carrying contacts 16, 17 which are separated by an insulating barrier 18 within which slide carriers 19, 20 carrying, on shelves 23, 28, blades 21, 22 for co-operating with the contacts 16, 17. The blade 21 is connected to each of three terminals 25 in which engage the ends of leads 26 passing through the carrier 19 and constituting bridging conductors in parallel between the conductors 12. Corresponding members 29, 30 are associated with the carrier 20 which includes a fuse 31 of low rating which is inserted in circuit, after the contacts 16, 21 are separated, by means of an arrangement of slots 34, 36 of such lengths that carrier 19 is moved before the carrier 20. Vertical barriers 15a in the casing separate the main part from the fuse part of the casing. The leads 26 are preferably attached to fuses 44 having restricted portions 45 such that when the fuses rupture, the gases generated drive out the fuse ends by means of piston-like plugs 46, but in a modified form the fuses may be under spring or weight tension. The arc formed, if any, between the contacts 16, 21 or 17, 22 is ruptured by means of insulating barriers 37, 38 which are urged by springs into slots in the barrier 18 when the contacts separate and are deflected on reclosure by plates 41, 42 on the barriers 37 and carriers 19, 20 respectively. Figs. 6-14 (not shown) relate to several different arrangements such barriers may assume. The Specifleation also describes an arrangement' in which the fuses 27 are in series, a duplicate bus-bar arrangement employing as selectors switches according to the invention, and an automatic release whereby the switch is opened at a value of overload lower than that at which the fuses 27 are intended to blow, the switch being also electromagnetically closed and latched open by an electromagnetically-withdrawn latch.
Patent GB-834088-A (GB)
Title: Improvements relating to water repellent organopolysiloxane compositions for leather
IPC: C14C9/00
Filed: 1957-09-24
Abstract: A composition for waterproofing leather comprises by weight (1) 9 to 19% of the intercondensation product of (a) a cohydrolysate of a trialkyl silane and an alkyl silicate, the alkyl radicals of both being lower alkyl radicals and the cohydrolysate containing Si-bonded OH groups, and (b) a high viscosity linear organopolysiloxane liquid containing terminal Sibonded OH groups, (2) 9 to 19% of hydrolysed lower alkyl silane containing a curing agent, (3) 24 to 34% of Ti(OR)4, wherein each R is an alkyl radical having less than 13 carbon atoms, and (4) 38 to 48% of a solvent.  The intercondensate (1), which is described and claimed in Specification 803,262 may contain saturated, unsaturated or halogenated hydrocarbon radicals. Curing agents specified are the octoates of Sn and Zn and the naphthenates of Zn, Co and Mn.  Solvents specified are petroleum derivatives, toluene, benzene, xylene, trichloroethylene, heptane, hexane and isopropanol.  The compositions may be used in conjunction with other materials such as polishes and fillers.  Specification 772,088 also is referred to.
Patent GB-1382455-A (GB)
Title: Hydraulic transmission
IPC: B60W30/18
Filed: 1972-06-27
Abstract: 1382455 Hydrostatic transmission ROBERT BOSCH GmbH and ZAHNRADFABRIK FRIEDRICHSHAFEN AG 27 June 1972 [28 June 1971] 29968/72 Headings F2D and F2W In the hydrostatic transmission shown, in which a prime mover 1, having an accelerator pedal 17, drives a pump 2, which may be adjustable in output, having a lever 29 to control its delivery, as well as that of an adjustable motor 5 through linkage 38, 38<SP>1</SP>, a further control 27  is provided which can simultaneously reduce prime mover speed by adjustment of member 16 and increase the gear ratio by adjustment of pump 5, through piston and cylinder devices 20, 27 and 32, 33. The lever 27 controls a two position valve 26 which supplies pressure to one side or the other of the cylinders 20, 32 from a feed pump 7 through lines 24, 36 and 25, 35, to thus vary the lengths of the linkages connecting accelerator pedal 17 and prime mover 1, and lever 29 and adjusting arm 39 of the motor 5 to effect a control similar to that of an overdrive. The motor 5 drives a wheel 6 of a vehicle (e.g. a combine harvester). Relief valves 14 and 15 are provided in the flow line 3 and 4 between pump 2 and motor 5 and a relief valve 13 protects the feed circuit. The pump 2 can be reversible. In a further embodiment (Fig. 2, not shown), the accelerator pedal 17 also controls pump 2 displacement, with a separate selector being provided for forward or reverse.
Patent GB-787021-A (GB)
Title: Improvements in or relating to pneumatically-operated control apparatus
Inventor: HEPBURN ROBERT
IPC: F15B11/20
Filed: 1953-10-29
Abstract: 787,021. Pneumatic single-stroke apparatus. MORTON MACHINE CO., Ltd. June 2,1955 [Oct. 29, 1953], No. 29971/53. Class 8(2). [Also in Group XXIV] The first of two compressed air actuated pistons 2, 4 serving to control sequentially devices such as a slow and fast clutch respectively on the heater shaft of a mixing machine (not shown) has a collar 9 secured to its rod 1 which when the piston 2 is in its depressed inoperative position opens a poppet valve 7 to allow compressed air from a supply duct 13 to gain access to a duct 18 leading to the cylinder 6 of the piston 4 and depress the latter to its operative position. The cycle of operations is initiated by momentarily depressing a normally closed valve 15 which allows passage of a pulse of air through a duct 12 sufficient to raise the piston 2 to its operative position ; air above the piston being exhausted to atmosphere through the duct 13 and a piston valve 16. Depression of valve 15 also energizes a motor for continuously rotating cams 25, 29 which control the piston 22 of valve 16 and the piston 26 of a valve 27 in the duct 18 and also in a duct 14 of the cylinder 6. When cam 25 allows piston 22 of valve 16 to be urged by its spring 24 to its pressure position compressed air in duct 13 depresses piston 2 to its inoperative position and valves 7, 17 now being open piston 4 is depressed to its operative position. After a further time interval the cycle is completed when the cam 29 allows the piston 26 of valve 17 to be urged by its spring 28 to the position in which it connects duct 14 to the pressure supply duct andthe piston 4 is raised to its inoperative position ; air above it being exhausted to atmosphere through duct 18 and the valve 17.
Patent GB-817041-A (GB)
Title: Improved vinyl chloride polymer compositions
Inventor: SANDERSON ALBERT KENNETH
IPC: C08L71/00
Filed: 1956-10-02
Abstract: Compositions comprise vinyl chloride polymers and minor proportions of polyglycerols of molecular weight 300 to 7500 or an ester thereof with one or more carboxylic acids in which not more than 15 per cent of the hydroxyl groups have been esterified with a polycarboxylic acid.  The polyglycerols may be prepared by heating glycerol in the presence of an alkaline catalyst, e.g. sodium hydroxide, and distilling off the water liberated.  The removal of the water is preferably assisted by passing a rapid stream of inert gas, e.g. nitrogen or carbon dioxide, through the reaction mixture.  The polyglycerols may be esterified by heating with carboxylic acids, acid chlorides or anhydrides in the presence of a catalyst, e.g. benzene or p-toluene sulphonic acid. Specified acids are propionic, caproic, caprylic, lauric, palmitic, stearic, oleic, maleic, malonic, succinic, glutaric, adipic and sebacic, and mixtures, e.g. of propionic and lauric, and propionic and maleic acids.  The compositions may contain plasticisers, lubricants, pigments, fillers and heat-stabilizers. Foils of the composition may be hot-press laminated to give sheets.
Patent GB-785254-A (GB)
Title: Punching hand-tool
IPC: B21D28/22
Filed: 1955-10-20
Abstract: 785,254. Punching pliers. LAUNAY, P. Oct. 20, 1955 [Oct. 25, 1954], No. 30036/55. Class 61. Pliers for cutting notch enlargements of an initial hole 12, Fig. 10, in sheet metal or other material by a single operation whereby the notches are cut successively from one side only of the material, comprise a pair of pivoted handle levers 1, 2, the lever 1 having a head adapted to rest on the material in the vicinity of the hole and the handle 2 being connected to a hollow punching member 5 reciprocably mounted in the head, a second punching member 6 being mounted in the member 5 and retractable thereinto from an active position to permit passing the member 5 through the hole 12. Each member 5, 6 has a radially projecting cutting shoulder. A spring 8 fixed to the lever 2 by a screw 9 urges the punching member 5 into the projecting or rest position, Fig. 1, a spring 10 urging the levers apart. A stud bolt 11 limits the closing of the levers. The member 6 is urged towards its active locked position in a step 17 in the member 5 by spring means 13, a leaf spring 16 tending to shift the member 6 radially and outwardly. A die member 18 is secured in the lower end of the bore 4 in the head, the inner edge of the member 18 being precisely matched with the outer edges of the punching members 5, 6. The punching assembly is passed through the hole 12, the head being slightly inclined as in Fig. 5 to facilitate the penetration. On pressing together the levers 1, 2 the usual punching action under shearing force is performed by co-operation of the die 18 and the cutting shoulders of the members 5, 6.
Patent GB-1412717-A (GB)
Title: Apparatus for sampling pulses
IPC: G01R13/34
Filed: 1973-06-25
Abstract: 1412717 Measuring pulse characteristics; measuring current INTERNATIONAL BUSINESS MACHINES CORP 25 June 1973 [30 June 1972] 30041/73 Heading G1U [ Also in Division H3] Electromagnetic pulses from a source 16 produce a magnetic field as they travel along line 14, which couples to a loop 18 of super-conductive material 20 including a Josephson device J 1 which is switched into its super-conductive state in order to trap the flux in the loop, this is then measured. The device J 1 is switched by removing the current I c  flowing in a control line 26 which passes close by the device J1 thus coupling magnetically to it. The current I c  is controlled by a trigger synchronized with the source 16. The current I J1  flowing in the super-conductive loop  18 creates a magnetic field which links with a further (non-linear) Josephson device J2. By controlling and measuring the standing current I J2  through J2, the current I J1  can be determined from I J2  when J2 switches to its resistive state; as indicated by meter 38. In modifications, several loops 18 are provided, these either being separate, Fig.8 (not shown), or connected in a ladder network, Fig.9 (not shown), and each loop has its own current measuring arrangement. Using these arrangements and varying the sampling instant, any part of a waveform may be sampled, or a whole single pulse may be sampled or a repetitive signal studied over several cycles. The superconductive loop is critically damped, allowing extremely high switching speeds and giving a bandwidth up to 100GHZ.
Patent GB-1410906-A (GB)
Title: Cable carrier means
IPC: H02G11/00
Filed: 1971-06-26
Abstract: 1410906 Supporting conductors WINSTER MINING Ltd 25 Sept 1972 [26 June 1971] 30069/71 Heading H2C For releasably supporting and protecting cables connected to a coal-cutting machine travelling on rails 12 of a conveyer 10, a yieldable fence-like structure, mounted alongside an upstanding articulated spill-plate 13 secured to the conveyer 10, constitutes with the spillplate an open trough. Preferably the structure is of skeletal form, comprising vertical members 18 secured at their lower ends to brackets 23 mounted on a rail 24 on the side of the spill-plate 13 facing away from the conveyer; and horizontal members 19 secured to the vertical member 18 by T-shaped connecting pieces 25. The vertical and horizontal members may be made of flexible armoured rubber hose, and may contain stiffening rods 22 and 26 extending through part of their lengths. In a modification (Fig. 2, not shown) the vertical members are secured by rods (122a) to brackets (123) directly fixed to the spillplate (113) leaving the rail (124) free for other uses.
Patent GB-835396-A (GB)
Title: Method of and apparatus for making dry packaged concrete
Inventor: AVRIL ARTHUR CHRISTIAN
IPC: B28C9/00
Filed: 1958-09-19
Abstract: 835,396. Packaging. A. & T. DEVELOPMENT CORPORATION. Sept. 19, 1958, No. 30074/58. Class 94(1). [Also in Groups II, XIII and XVIII] In a plant for the preparation of dry ready-mixed pre-packaged concrete (see Group II) the sand, aggregate and cement are advanced by vibrating feeders 60, 64, Fig. 3, into a rotary scale hopper 62 by which the feeders are activated to supply pre-determined amounts. When the required amounts are in the hopper the feeders stop and the operator by means of a button or treadle (not shown) causes the hopper 62 to rotate through 360 degrees discharging the materials into the funnel 68 whence they pass into a paper bag tied to the spout 70. In another arrangement, Fig. 15, the materials are fed into scale hoppers 118, 124 having discharge doors 120 operated by solenoids 121, and are thence directed by baffles 144 into a rotary hopper 62 which when full is rotated discharging the materials into a bag tied to spout 123.
Patent GB-1298805-A (GB)
Title: Resins
Inventor: GAMON MICHAEL HUGH
IPC: C08K5/07
Filed: 1969-06-13
Abstract: 1298805 Polymer compositions; cyclic ketone resins LAPORTE INDUSTRIES Ltd 2 June 1970 [13 June 1969] 30085/69 Headings C3P and C3R  Liquid vinyl or vinylidene chloride polymer compositions contain as processing aid a cyclic ketone resin obtained by the base-catalysed condensation of a cyclic ketone, in which the keto group is part of a 5-7 carbon ring, with methanol optionally with other ketones, aldehydes or alcohols in minor amount. Preferably 0À1-10% of the ketone resin is added to the polymer. Exemplified polymers are P.V.C., vinyl chloride-vinylidene chloride copolymer and vinyl chloride-vinyl acetate copolymer. Also added are tribasic lead sulphate, calcium stearate and carbon black, and the ketone resin was obtained from cyclohexanone and methanol. Up to 10% of plasticizer may be present.
Patent GB-443192-A (GB)
Title: Improvements in and relating to communication systems
IPC: B61L7/06
Filed: 1935-10-31
Abstract: 443,192. Electric selective signalling systems. GENERAL RAILWAY SIGNAL CO., Rochester, New York, U.S.A.-(Assignees of Hailes, W. D. ; Brighton, New York, U.S.A.) Oct. 31, 1935, No. 30097. Convention date, Oct. 31, 1934. [Class 40 (i)] In a system in which a relay is connected periodically to a line to indicate the open or closed condition of a contact at a remote point in the line, the capacity of the line is precharged prior to each connection of the relay to the line. As shown in the figure the relay ME is used to indicate the condition of the contact 17 of railway track relay T. To obtain an indication key K is operated so that relay IE pulls up followed by slow to operate relay 2E. During the period between the operation of these two relays the battery 18 is connected to the line 13, 15 through charging resistance CR so that the capacity of the line is charged. When relay 2E pulls up contact 7 changes over and if contact 17 is open, as the distributed capacity of the line is charged, no current flows and relay ME remains de-energized. If however contact 17 is closed relay ME pulls up and locks, lighting lamp 1. Relay ME is released by key CK. The application of the invention to the system of Specification 419,399 also is described.
Patent GB-321048-A (GB)
Title: Improvements in or relating to suspenders for stockings or the like
IPC: A41F11/16
Filed: 1928-10-18
Abstract: 321,048. Rigold, E. E. Oct. 18, 1928. Garters and hose supporters.-A hose-supporting device consists of a band, one end 2 of which is attached to the corset &c. and passes vertically down the leg to a slotted plate 3 of the kind described in Specification 295,809, the looped end 1 being slipped over a hook 10 after embracing the leg. The vertical part is furnished with a movable, pivoted clip 7 which clamps the top edge of the stocking to the band.
Patent GB-1002781-A (GB)
Title: Cigarette filter
IPC: A24D3/16
Filed: 1964-08-07
Abstract: 1,002,781. Tobacco smoke filters. G. M. JACOBSON. Aug. 7, 1962, No. 30242/62. Drawings to Specification. Heading A2C. A tobacco smoke filter is formed of a mass of randomly arranged particles of tourmaline dispersed in a carrier, e.g. of paper. The filter is used in conjunction with a cigarette which comprises a mixture of tobacco having co-mingled therewith a substance having a high thermionic emission such as tantalum, gallium, molybdenum and tungsten. Such substances may also be incorporated in the paper cigarette wrapper and ionize the tars and nicotine released when the cigarette is smoked so that they may be precipitated by the tourmaline in the filter.
Patent GB-427780-A (GB)
Title: Improvements in pistons or the like
IPC: F16J9/08
Filed: 1934-10-22
Abstract: 427,780. Pistons. GODRON, W. G. G., 11, West 68th Street, New York, U.S.A. Oct. 22, 1934, No. 30304. Convention date, Oct. 31, 1933. [Class 122 (i)] The low pressure side surface of a ring groove is provided with a circumferential recess 12 bounded by a peripheral ridge 13<a> and spaced blocks 14 forming a seat for the ring. The prevailing pressure has access through radial slots 9<a> in the other side of the groove to the back of the ring and thence between the blocks 14 to the recess 12. The cylinder bearing pressure of the ring may be reduced by connecting a peripheral groove 15 to the recess 12 through passages 16. In a double acting piston, both sides of the groove are provided with recesses 19, 20, and two circumferential grooves 31, 32 in communication therewith are provided in the ring.